package com.example.demo.exception;

import com.example.demo.common.Result;

import lombok.extern.slf4j.Slf4j;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;


@RestControllerAdvice
@Slf4j
//用于注册账号已存在等等
//全局异常处理器
public class GlobalExceptionHandler {

//    @ExceptionHandler(Exception.class)
//    public Result handleException(Exception e){
//        e.printStackTrace();
//        return Result.error(StringUtils.hasLength(e.getMessage())? "账号已存在" : "未知错误");
//    }

    /**
     * 异常处理方法
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public Result exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());

        if(ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] + "已存在";
            return Result.error(msg);
        }

        return Result.error("未知错误");
    }




}
